The foolish reject what they see and not what they think; the wise reject what they think and not what they see. - Huang Po
Compare the above with Psalms 14:1: The fool says in his heart, "There is no God."
Evidence-based reasoning is the main contributing factor to human progress. When religious celebrate blind faith, science celebrate evidence and reason. Perception can be deceiving too. But "what you see" is always better than "what you think" when it comes to making decision. Observation needs to be repeatable, independent and verifiable. Deduction based on such evidence is how science works. It is also how intelligent being should work.
Have you seen any evidence of god?